Cultivator.



F. UPSHAW.

GULTIVATOB. APPLICATION FILED 0013.8, 1909.

FOY UPSHAW, OR GOLLINSVILLE, TEXAS.

CULTIVATOR.

Specification of Letters Patent.

Patented Feb. 1, 1910.

Application filed October a, 1909. Serial No. 521,705.

To all whom it may concern:

Be it known that I, FOY UPSHAW, a citizen of the United States, residing at Collinsville, in the county of Grayson and State of Texas, have invented certain new and useful Improvements in Cultivators, of which the following is a specification.

This invention relates to certain improvements in cultivators, and more particularly 'to that class in which the shovel point or cultivator. tooth is pivotally connected to In the accompanying drawings forming a.

part of this specification and in whichsimiar reference characters indicate like parts in the several views, Figure 1 is. a side elevation of a portion of a cultivator beam with its shovel or point, showing my invention applied thereto. 2 1s a bottom plan View of the same. ig. 3 is'amodification to be referred to.

In the said drawingsv I have illustrated my improvements as connected or attached to a well known type of cultivator, namely one wherein the shovel point is pivotally connected to thebeam and where provision is made for the point to yield or spring back in passing over an obstruct-ion and to be restored to its normal sition after the obstruction is passed; it will be understood, however, that the. salient features of my invention are not limited to this particular type of cultivator, but'that'said invention com rehends and-includes any agricultural imp ement for cultivatin theg'round and Whlch comprises a "ivot or shovel or other lgging implement.

The cultivator beam, A, and its shovel or point, B, may be of any of the usual-types,

the 'oint or shovel being pivotally connected to t e lower end of the am by a bolt, a, passing throu h an intermediate portion of the shovel an through the beam and being ap ropriately secure In the elg'pe of machine shown the beam has secur to it and projecting rearwardly y mounted tootha casting-or block, 0, with a socket, d, for one endof a spring, 0, through which passes a rod, D, the upper end of which is provided with a nut, E, and washer, F, against which the upper end of the spring presses. The upperend of the rod, D, is threaded and the nut operates on this threaded portion to regulate the tension of the spring; the lower end of the spring seats in the socket through which the rod passes, and the lower end of the rod is secured as I will hereinafter mention;

On the back edge of the cultivator beam is formed a lug or other bearing, e, through which passes a-bolt 10, the ends of this bolt projecting beyond the outer sides of the lug and being designed to receive the inner ends of the parallel members, 11, of an elongated U-shaped stirrup or yoke, 12, said arms or members being connected near their forward ends by means of a bolt, 13, and the lower end of the tension rod, D, before mentioned, having an eye which receives said bolt to thereby secure the rod fixedly in place.

In the sides or members, 11, of the stirrup or yoke, 12, are made the longitudinal slots, 14, and between the inner sides of said yoke there is mounted to slide a follower such as, a nut, 15, from opposite sides of which project journals, 16, which extend through the slots in the sides of the yoke or stirrup and to a suitable distance beyond the outside thereof to receive suitable straps or plates, 17, which extend forwardly along the sides of the arms or members, 11, of the yoke and to a point proximate to the upper front angle or end of the cultivator point or shovel, B,.,and are connected therewith by means of a bolt, 18, passing through the forward ends of said plates or straps and through the upper front end of the shovel or cultivator point, this bolt being secured by 'any of the methods usually employed in this art for similar purposes. In the construetion'shown suitable washers, 19, are introduced between the inner sides of the straps or plates, 17, and the adjacent sides of the cultivator tooth, and the adjoinin surfaces of these washers and-"of the shove or point may be provided with teeth or corrugations, 20, to assist in rigidly holding the parts, but which feature i3 no part of my present invention.

The aforesaid follower or travelin nut 15, which operates between the inner si es of the U-shapedy'oke is provided with a centrally threade opening through which operates a screw, 21, which screw extends rearwardly through an appropriate opening in the bight or closed end of the yoke. The outer end of the screw may be provided with any Well known form of nut, 22, adapted to be operated by hand or by the application of a wrench or other suitable tool; if desired, a hand wheel, 23, as shown in Fig. 3, may be used as the means for operating the screw. The screw has a rigid collar, 24, which lies just inside of and bears against the closed end of the yoke or stirrup and thus holds the screw against longitudinal movement, but allows the screw to be rotated to advance or retract the nut and through the outside plates or straps which are connected to the nut, impart movement to the upper end of the cultivator shovel or point thereby causing the latter to swing about its pivot to change the angle of the lower or working portion of the shovel and, incidentally, regulate the depth which the point of the shovel shall enter the ground.

By the means described the operator is permitted to adjust the cultivator tooth and fix the same in its adjustment with but little difficulty and whenever the condition of the ground makes it necessary to. change the angle of said shovel.

It will, of course, be understood that various changes in the form, proportion and the minor details of construction may be resorted to without departing fromthe salient features and essential advantages of this invention.

Having thus described my invention what I claim and desire to secure by Letters Patent is:

1. In a cultivator, the combination with the beam thereof and a pivotally mounted shovel or point, of means for adjusting said shovel or oint, said means including a guide, a fo lower slidably mounted therein means connecting the follower to the shovel at one side of the pivotal connection of the latter, and means for operating the follower.

2. In a cultivator, the combination with the beam thereof and its shovel or point, said shovel being pivotally mounted between its ends to the beam, of means for adjusting the shovel, said. means including a member secured to the beam and extending rearwardly therefrom, a follower operating relatively to said member, means connecting the follower to the shovel at one side of the pivoted connection of the latter, and means for operating the follower.

3. In a cultivator, the combination with the beam thereof, and a pivotally mounted shovel or point, of means for adjusting said shovel or point, said means including a U- shaped stirrup extending in rear of the beam and connected thereto, said stirrup having longitudinal slots, a follower between the inner sides of the stirrup having ends slidably mounted in said slots, connections between the follower and the upper end of the shovel and means for operating the follower.

4. In a cultivator, the combination of a beam, a shovel pivotally mounted thereon, a substantially U shaped stirrup extending rearwardly from .the beam, a screw turnably mounted in the rear end of the stirrup, and held a ainst longitudinal movement therein, said stlrrup having slotted sides, a follower between the sides of the stirrup having end journals passing through said slots, and plates extending along the outer sides of the stirrup having one end connected to said journals and the opposite end connected to the shovel at one side of the ivot thereof.

In testimony whereof I a x my signature in presence of two witnesses.

FOY UPSHAW.

Witnesses W. J. MCGAUGIIY, J. D. HART. 

